Method for defoaming cementitious compositions using polyamine oxides
US-11148975-B2 · Oct 19, 2021 · US
Sulfonated naphtalene-formaldehyde condensation products
Sulfonated naphtalene-formaldehyde condensation products · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B24/226 |
| Official title | {Sulfonated naphtalene-formaldehyde condensation products} |
| Display label | Sulfonated naphtalene-formaldehyde condensation products |
| Total patents | 78 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 10 |
| 2018 | 13 |
| 2019 | 14 |
| 2020 | 11 |
| 2021 | 6 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 6 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polyalkoxylated polyamine oxide defoaming compositions
US-11130709-B2 · Sep 28, 2021 · US
Non-aqueous liquid anti-shrinkage cement additives
US-11124452-B2 · Sep 21, 2021 · US
Cement compositions comprising aqueous latex containing dispersed solid and liquid elastomer phases
US-10947440-B2 · Mar 16, 2021 · US
Cement compositions comprising aqueous latex containing dispersed solid and liquid elastomer phases
US-10947439-B2 · Mar 16, 2021 · US
Hydration control mixture for mortar and cement compositions
US-10815152-B2 · Oct 27, 2020 · US
Dispersant composition for hydraulic compositions for centrifugal molding
US-10800702-B2 · Oct 13, 2020 · US
Non-aqueous liquid anti-shrinkage cement additives
US-2020317574-A1 · Oct 8, 2020 · US
Modifying cementitious compositions using ketone alcohol oil waste
US-10752549-B2 · Aug 25, 2020 · US
Non-aqueous liquid anti-shrinkage cement additives
US-10737978-B2 · Aug 11, 2020 · US
Gypsum set accelerator and method of preparing same
US-10737979-B2 · Aug 11, 2020 · US
Construction chemical compositions comprising a bisulfite adduct of glyoxylic acid
US-10723656-B2 · Jul 28, 2020 · US
Additive containing a superplasticizer and a copolymer
US-10689303-B2 · Jun 23, 2020 · US
Cement compositions comprising aqueous latex containing dispersed solid and liquid elastomer phases
US-10683451-B2 · Jun 16, 2020 · US
Water-reducing composition, hydraulic composition, and method for producing the same
US-2020157004-A1 · May 21, 2020 · US
Method for producing a gypsum plasterboard
US-10570062-B2 · Feb 25, 2020 · US
Low dust gypsum wallboard
US-2019382311-A1 · Dec 19, 2019 · US
Methods for maintaining zonal isolation in a subterranean well
US-10472554-B2 · Nov 12, 2019 · US
Cement compositions containing metaphosphate and methods of use
US-10442975-B2 · Oct 15, 2019 · US
Light weight gypsum board
US-10407345-B2 · Sep 10, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B24/226?
- CPC C04B24/226 is the Cooperative Patent Classification code for “Sulfonated naphtalene-formaldehyde condensation products.”
- How many patents are filed under CPC C04B24/226 (Sulfonated naphtalene-formaldehyde condensation products)?
- Our database includes 78 publications tagged with this CPC code.
- Is patent activity under CPC C04B24/226 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).